1: (4 12 18)

(0 19 17)(1 20 8)(2 18 9 6 12)(3 15 5)(4)(7 14 10)(11 16 13)

2: (3 15 5)

(0 19 17)(1 20 8)(2 18 9 6 12)(3)(4)(5)(7 14 10)(11 16 13)(15)

3: (11 16 13)

(0 19 17)(1 20 8)(2 18 9 6 12)(3)(4)(5)(7 14 10)(11)(13)(15)(16)

4: (2 6 12)

(0 19 17)(1 20 8)(2)(3)(4)(5)(6 18 9)(7 14 10)(11)(12)(13)(15)(16)